Secondary sanctions go a step further and extend to third-party countries, companies or individuals that do business with sanctioned parties. Even though these third-party entities aren't directly bound by the sanctioning country's laws, they are pressured to comply or face consequences should they do business in the sanctioning country.
The order states that the de minimis exemption will no longer apply 'regardless of value, country of origin, mode of transportation or method of entry' meaning all shipments will be subject to 'all applicable duties, taxes, fees, exactions and charges'.